高等学校化学学报

高等学校化学学报 ›› 2005, Vol. 26 ›› Issue (7): 1345.

• 研究简报 • 上一篇    下一篇

碳纳米管负载的铂催化剂对柠檬醛选择加氢及CO微分吸附热研究

张耀君1,2, 李聚源2, 李文震3, 辛勤3   

  1. 1. 西安交通大学动力工程多相流国家重点实验室,西安710049;
    2. 西安石油大学化学化工学院,西安710065;
    3. 中国科学院大连化学物理研究所催化基础国家重点实验室,大连116023
  • 收稿日期:2004-08-10 出版日期:2005-07-10 发布日期:2005-07-10
  • 通讯作者: 张耀君(1959年出生),男,博士,教授,从事工业催化和有机合成研究.E-mail:yjzhang@xsyu.edu.Cn E-mail:yjzhang@xsyu.edu.Cn
  • 基金资助:

    教育部留学回国人员科研启动基金(批准号:200555);陕西省自然科学基金(批准号:2004B04)资助.

Pt Catalyst Supported on Carbon Nanotubes for Selective Hydrogenation of Citral and Differential Heats of CO Adsorption

ZHANG Yao-Jun1,2, LI Ju-Yuan2, LI Wen-Zhen3, XIN Qin3   

  1. 1. State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China;
    2. College of Chemistry and Chemical Engineering, Xi'an Petroleum University, Xi'an 710065, China;
    3. State Key Laboratory of Catalysis Basis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
  • Received:2004-08-10 Online:2005-07-10 Published:2005-07-10

PDF (PC)

被引次数

38

关键词: 柠檬醛选择加氢, CO微分吸附热, Pt/CNTs催化剂

Abstract: Carbon nanotube is found to be a novel support for the selective hydrogenation of citral in this paper. Selective hydrogenation of citral was carried out in an autoclave at 5 MPa and 323 K. The results indicate that the selectivity of the products, unsaturated alcohols, is about 86 over Pt/CNTs catalyst and 48 over Pt/XC-72 catalyst, respectively. The differential heat of CO adsorption measured by microcalorimetry is firstly used to probe surface adsorption sites of platinum catalyst supported on carbon nanotubes. The experimental results indicate that the Pt/CNTs catalyst shows a higher initial differential heat of CO adsorption(126 kJ/mol) than the Pt/XC-72 catalyst(106 kJ/mol).

Key words: Selective hydrogenation of citral, Differential heats of CO adsorption, Pt catalyst supported on carbon nanotubes

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